Cement/mortar mixing pump, especially for use in tunneling, has a mixing chamber with the impeller screw and liquid jets and a funnel for filling, which is less likely to clog giving reduced cleaning

摘要

The cement and mortar mixing pump has a powered impeller screw (14) in a funnel (12) to be filled with the materials for mixing. The mixing chamber (18), separately between the funnel and the pump flange (20), is a component fastened to the funnel where the mixing chamber cladding (52) is in direct contact with the funnel and the pump flange. A number of liquid spray jets are held in a jet carrier, fitted within a recess in the chamber cladding to lie flush with its inner surface, in a release mounting which can be accessed externally.